US Bridges

Pilot Grove RD over Trib of N Moreau C

PoorPosted for load

Moniteau County, Missouri · S 14 T 44 N R 16 W · Structure no. 17535

Built
1940
85 years old, rebuilt 1992
Condition
Poor
inspected November 2023
Type
Truss - Thru
Steel
Length
43 ft
1 main span
Daily traffic
20
2024 count
Owner
County
County Highway Agency

About this bridge

Pilot Grove RD over Trib of N Moreau C is a steel truss - thru carrying Pilot Grove RD over Trib of N Moreau C in Moniteau County, Missouri. It was built in 1940 and reconstructed in 1992, so it is 85 years old, older than the Missouri average of 45.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 20 vehicles a day, roughly 10% of them trucks, projected to reach 28 by 2044. The structure is 43 ft (13.1 m) long and 12 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesPilot Grove RD
CrossesTrib of N Moreau C
LocationS 14 T 44 N R 16 W
RouteCounty Highway 155
Coordinates38.57562, -92.6541
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating34.7 US tons
Inventory rating14.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadOther
Structure length43 ft (13.1 m)
Longest span41 ft (12.5 m)
Deck width12 ft (3.6 m)
Roadway width12 ft (3.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic20 (2024)
Projected traffic28 by 2044
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$366,000 (2025 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pilot Grove RD over Trib of N Moreau C built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 1992.

What condition is Pilot Grove RD over Trib of N Moreau C in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does Pilot Grove RD over Trib of N Moreau C carry?

About 20 vehicles per day (2024 count), of which roughly 10% are trucks.

How long is Pilot Grove RD over Trib of N Moreau C?

The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 12 ft wide.

Who owns Pilot Grove RD over Trib of N Moreau C?

It is owned by the County Highway Agency.